Merge: Fix pypy errors

Signed-off-by: Michael Hofmann <mhofmann@redhat.com>

See merge request !357

cki_lib/session.py

@@ -41,7 +41,7 @@ def get_session(user_agent: str,
             response.raise_for_status()
         session.hooks['response'].append(do_raising)
 
-    default_retry_args = {'total': 5, 'backoff_factor': 1}
+    default_retry_args: typing.Dict[str, typing.Any] = {'total': 5, 'backoff_factor': 1}
     default_retry_args.update(retry_args or {})
 
     retry = Retry(**default_retry_args)